EP2960543A1 - Support hydraulique autonome - Google Patents

Support hydraulique autonome Download PDF

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Publication number
EP2960543A1
EP2960543A1 EP15168732.4A EP15168732A EP2960543A1 EP 2960543 A1 EP2960543 A1 EP 2960543A1 EP 15168732 A EP15168732 A EP 15168732A EP 2960543 A1 EP2960543 A1 EP 2960543A1
Authority
EP
European Patent Office
Prior art keywords
valve
mount according
hydraulic mount
hydraulic
working chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15168732.4A
Other languages
German (de)
English (en)
Other versions
EP2960543B1 (fr
Inventor
Wolfgang Beckmann
Günter Lobmüller
Roland Holz
Peter Farrenkopf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vibracoustic SE
Original Assignee
Trelleborg Vibracoustic GmbH
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Filing date
Publication date
Application filed by Trelleborg Vibracoustic GmbH filed Critical Trelleborg Vibracoustic GmbH
Publication of EP2960543A1 publication Critical patent/EP2960543A1/fr
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Publication of EP2960543B1 publication Critical patent/EP2960543B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
    • F16F13/105—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
    • F16F13/106—Design of constituent elastomeric parts, e.g. decoupling valve elements, or of immediate abutments therefor, e.g. cages

Definitions

  • the present invention relates to a decoupled hydraulic bearing with a working chamber and a compensation chamber, which are separated by a partition wall with a damping channel, wherein the partition wall consists of two nozzle disks with a membrane arranged between the nozzle disks.
  • switchable hydraulic bearings are used in which a closable passage opening for the fluid is provided centrally in the partition, which is opened at idle and thus forms a Zilgerkanal for the fluid and thereby the dynamic stiffness in the relevant Frequency range reduced.
  • these switching bearings are designed with automatic membrane clearance adjustment and clamped the membrane with the opening of the passage opening.
  • the structure of a decoupled hydraulic bearing is for example the DE 30 19 337 C2 refer to.
  • the structure of a switchable hydraulic bearing is in the DE 41 41 332 C2 shown.
  • the invention is based on the object to provide a decoupled hydraulic bearing, which has an improved behavior at low frequencies.
  • a strong lowering of the dynamic stiffness in Frequencies below 10 Hz can be avoided.
  • the aim is generally to achieve a reduction in the dynamic stiffness in the area.
  • the valve is designed so that it opens at negative pressure in the working chamber and is closed when pressure in the working chamber.
  • negative pressure and overpressure refer here to the pressure difference, which is caused by vibrations between the working chamber and the compensation chamber. The negative pressure arises when the fluid has reached resonance vibrations in the damping channel. At the maximum of the resonance vibrations, the valve is fully open.
  • the valve is designed to open at membrane frequencies of 1 to 15 Hz and membrane amplitudes of 0.005 to 10 mm. As the frequency increases, the opening gap of the valve becomes lower to about 50 Hz at which the valve remains closed.
  • the valve is designed as a check valve, preferably as a flap valve with laterally arranged pivot axis. It is convenient to form the flap of the valve in a tongue shape in which the tongue tip is semicircular. The tongue central part widens conically towards the pivot axis of the flap. Above the valve, the upper nozzle disc has an opening which allows a free deflection of the valve flap in the direction of the working chamber. Below the valve flap, there is a passage in the lower nozzle disk that is significantly smaller than the opening in the upper nozzle disk so that the valve flap rests against the lower nozzle disk when the valve is closed and covers the passage.
  • FIG. 1 is a decoupled hydraulic bearing 1 shown in longitudinal section.
  • the hydraulic bearing 1 consisting essentially of the support bearing 2 with the suspension spring 3 and the support 4 with the rolling bellows 5.
  • the partition 6 is housed, which separates the working chamber 7 of the compensation chamber 8.
  • the partition wall 6 consists of the upper nozzle disk 9 and the lower nozzle disk 10. Between the nozzle disks 9, 10, the membrane 11 is arranged.
  • the damping channel 12 is housed in the partition 6.
  • Working chamber 7 and compensation chamber 8 are filled with a fluid and hydraulically connected to each other via the damping channel 12.
  • the nozzle disks 9, 10 are each provided with mutually aligned openings 13, 14, so that the fluid from both the working chamber 7 and the compensation chamber 8 access to the membrane 11 has.
  • the openings 13 in the upper nozzle disk 9 are unchanged, while at least a portion of the openings 14 in the lower nozzle disk 10 are significantly smaller than the associated openings 13 in the upper nozzle disk 9.
  • the valves 15 are inserted.
  • a part of the membrane 11 is cut in the region of the openings 13, 14, so that flap valves arise in the form of tongues. Due to the reduced design of the openings 14 in comparison to the openings 13, these flap valves can only open upwards.
  • the flaps of the valves 15 bear against the inner wall of the lower nozzle disk 10 with the smaller openings 14. Consequently, when vibrations occur, the valve 15 can only open when the pressure in the working chamber 7 is lower than in the compensation chamber 8.
  • the effectiveness of the valves 19 is in the frequency range 1 to 15 heart with membrane amplitudes of 0.05 up to 10 mm. It is possible to provide the partition 6 with only one opening with a valve 15 or more or all openings 13, 14th
  • the entrapment of the membrane 11 can take place both at its outer edge 16 and additionally in the inner region 17.
  • FIG. 2 shows the partition in an enlarged version to illustrate the design and arrangement of the valves 15.
  • FIG. 3 shows a section through an open valve 15.
  • the flap 19 of the valve 15 is formed in a tongue shape, while the tongue tip 20 is semicircular and the tongue 19 itself extends conically to the pivot axis of the flap.
  • the nozzle disks have a closable passage in the middle.
  • four openings 13, 14 are present, which are aligned with each other.
  • the upper nozzle disk 9 has two opposite openings 13 of the same size and the lower nozzle disk 10 have two opposite openings, which are, however, reduced in size and are covered by the valve flaps 19.
  • the valve flaps 19 are punched out of the only about 1 mm thick membrane 11 by piercing on three sides.
  • FIG. 4 is the result achieved in the dynamic rigidity in relation to the prior art.
  • the upper curve a shows the course of the prior art, while the lower curve A shows the course of the dynamic rigidity achievable with the present invention.
  • a significant reduction in stiffness and a more uniform course of rigidity is visible.
  • FIG. 6 shows the influence of the invention when idling in the given frequency range. It can be seen that an improvement in dynamic stiffness was achieved here as well. The stiffness A is even and the maximum is lower.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
EP15168732.4A 2014-06-24 2015-05-21 Support hydraulique autonome Active EP2960543B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014108840.9A DE102014108840B4 (de) 2014-06-24 2014-06-24 Entkoppeltes Hydrolager

Publications (2)

Publication Number Publication Date
EP2960543A1 true EP2960543A1 (fr) 2015-12-30
EP2960543B1 EP2960543B1 (fr) 2023-07-12

Family

ID=53267236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15168732.4A Active EP2960543B1 (fr) 2014-06-24 2015-05-21 Support hydraulique autonome

Country Status (2)

Country Link
EP (1) EP2960543B1 (fr)
DE (1) DE102014108840B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129531A1 (fr) * 2016-01-25 2017-08-03 Vibracoustic Gmbh Palier hydraulique à vanne de dépression
CN113404804A (zh) * 2021-06-15 2021-09-17 中国第一汽车股份有限公司 一种液压悬置装置及车辆

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019337C2 (de) 1980-05-21 1986-07-31 Fa. Carl Freudenberg, 6940 Weinheim Elastisches Gummilager
DE4141332C2 (de) 1991-12-14 1995-05-24 Freudenberg Carl Fa Umschaltbares Lager
US20100072683A1 (en) * 2006-12-05 2010-03-25 Yamashita Rubber Kabushiki Kaisha Liquid sealed vibration isolating device
US20120049423A1 (en) * 2010-08-31 2012-03-01 Tokai Rubber Industries, Ltd. Fluid-filled type vibration damping device
US20120299229A1 (en) * 2010-02-25 2012-11-29 Yamashita Rubber Kabushiki Kaisha Liquid sealed vibration isolating device
US20130069289A1 (en) * 2011-05-23 2013-03-21 Tokai Rubber Industries, Ltd. Fluid-filled type vibration damping device
WO2013161992A1 (fr) * 2012-04-27 2013-10-31 山下ゴム株式会社 Dispositif anti-vibrations étanche aux liquides

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522482A1 (de) 1985-06-22 1987-01-15 Freudenberg Carl Fa Hydraulisch daempfendes motorlager
DE102010045277B4 (de) 2010-09-14 2013-09-19 Carl Freudenberg Kg Trennwand für ein Hydrolager

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019337C2 (de) 1980-05-21 1986-07-31 Fa. Carl Freudenberg, 6940 Weinheim Elastisches Gummilager
DE4141332C2 (de) 1991-12-14 1995-05-24 Freudenberg Carl Fa Umschaltbares Lager
US20100072683A1 (en) * 2006-12-05 2010-03-25 Yamashita Rubber Kabushiki Kaisha Liquid sealed vibration isolating device
US20120299229A1 (en) * 2010-02-25 2012-11-29 Yamashita Rubber Kabushiki Kaisha Liquid sealed vibration isolating device
US20120049423A1 (en) * 2010-08-31 2012-03-01 Tokai Rubber Industries, Ltd. Fluid-filled type vibration damping device
US20130069289A1 (en) * 2011-05-23 2013-03-21 Tokai Rubber Industries, Ltd. Fluid-filled type vibration damping device
WO2013161992A1 (fr) * 2012-04-27 2013-10-31 山下ゴム株式会社 Dispositif anti-vibrations étanche aux liquides

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129531A1 (fr) * 2016-01-25 2017-08-03 Vibracoustic Gmbh Palier hydraulique à vanne de dépression
KR20180095689A (ko) * 2016-01-25 2018-08-27 비브라코우스틱 게엠베하 음압 밸브를 갖는 유압 마운트
CN108474436A (zh) * 2016-01-25 2018-08-31 威巴克公司 带有真空阀的液压支承
JP2019502882A (ja) * 2016-01-25 2019-01-31 ビブラコースティック ゲゼルシャフト・ミット・ベシュレンクター・ハフトゥングＶｉｂｒａｃｏｕｓｔｉｃ Ｇｍｂｈ 負圧弁を備える液体封入式マウント
US11241949B2 (en) 2016-01-25 2022-02-08 Vibracoustic Se Hydraulic mount with negative-pressure valve
CN113404804A (zh) * 2021-06-15 2021-09-17 中国第一汽车股份有限公司 一种液压悬置装置及车辆

Also Published As

Publication number Publication date
DE102014108840B4 (de) 2019-05-09
EP2960543B1 (fr) 2023-07-12
DE102014108840A1 (de) 2015-12-24

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